Fig. 2

EXO70H4 contribute to both stomatal- and apoplast-based defense in a bacterium-specific manner. a Stomatal aperture width in Arabidopsis leaves was measured at 2 h post inoculation with Pst DC3118, E. coli O157:H7, or STm 14,028 s at a concentration of 1 × 10⁸ CFU.mL^− 1. Results are shown as mean of two independent biological replicates (n = 120 ± SE). b Bacterial population was evaluated at one and three days after vacuum-inoculation with Pst DC3118, E. coli O157:H7, or STm 14,028 s at a concentration of 1 × 10⁶ CFU.mL^− 1. Results are shown as the average of two independent biological replicates (n = 12 ± SE). Note that human bacterial growth within plants is very consistent as reflected by the small error bars. Statistical difference between means (mutant versus Col-0) was detected with two-tailed Student’s t-test (** = p < 0.01; *** = p < 0.001; ns = non-significant). CFU = colony forming unit